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mdbx: add inlined mdbx_env_get_syncbytes() & mdbx_env_get_syncperiod().

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Leonid Yuriev 2021-12-03 16:46:33 +03:00 committed by Леонид Юрьев (Leonid Yuriev)
parent 4b886e2a58
commit f355f247c3
1 changed files with 63 additions and 1 deletions
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64
mdbx.h
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@ -172,6 +172,9 @@ as a duplicates or as like a multiple values corresponds to keys.
#include <stdarg.h>
#include <stddef.h>
#include <stdint.h>
#if !defined(NDEBUG) && !defined(assert)
#include <assert.h>
#endif /* NDEBUG */
#if defined(_WIN32) || defined(_WIN64)
#include <windows.h>
@ -2429,6 +2432,7 @@ LIBMDBX_INLINE_API(int, mdbx_env_sync_poll, (MDBX_env * env)) {
/** \brief Sets threshold to force flush the data buffers to disk, even any of
* \ref MDBX_SAFE_NOSYNC flag in the environment.
* \ingroup c_settings
* \see mdbx_env_get_syncbytes \see MDBX_opt_sync_bytes
*
* The threshold value affects all processes which operates with given
* environment until the last process close environment or a new value will be
@ -2453,11 +2457,39 @@ LIBMDBX_INLINE_API(int, mdbx_env_set_syncbytes,
return mdbx_env_set_option(env, MDBX_opt_sync_bytes, threshold);
}
/** \brief Get threshold to force flush the data buffers to disk, even any of
* \ref MDBX_SAFE_NOSYNC flag in the environment.
* \ingroup c_statinfo
* \see mdbx_env_set_syncbytes() \see MDBX_opt_sync_bytes
*
* \param [in] env An environment handle returned
* by \ref mdbx_env_create().
* \param [out] threshold Address of an size_t to store
* the number of bytes of summary changes when
* a synchronous flush would be made.
*
* \returns A non-zero error value on failure and 0 on success,
* some possible errors are:
* \retval MDBX_EINVAL An invalid parameter was specified. */
LIBMDBX_INLINE_API(int, mdbx_env_get_syncbytes,
(const MDBX_env *env, size_t *threshold)) {
int rc = MDBX_EINVAL;
if (threshold) {
uint64_t proxy = 0;
rc = mdbx_env_get_option(env, MDBX_opt_sync_bytes, &proxy);
#ifdef assert
assert(proxy <= SIZE_MAX);
#endif /* assert */
*threshold = (size_t)proxy;
}
return rc;
}
/** \brief Sets relative period since the last unsteady commit to force flush
* the data buffers to disk, even of \ref MDBX_SAFE_NOSYNC flag in the
* environment.
*
* \ingroup c_settings
* \see mdbx_env_get_syncperiod \see MDBX_opt_sync_period
*
* The relative period value affects all processes which operates with given
* environment until the last process close environment or a new value will be
@ -2488,6 +2520,36 @@ LIBMDBX_INLINE_API(int, mdbx_env_set_syncperiod,
return mdbx_env_set_option(env, MDBX_opt_sync_period, seconds_16dot16);
}
/** \brief Get relative period since the last unsteady commit to force flush
* the data buffers to disk, even of \ref MDBX_SAFE_NOSYNC flag in the
* environment.
* \ingroup c_statinfo
* \see mdbx_env_set_syncperiod() \see MDBX_opt_sync_period
*
* \param [in] env An environment handle returned
* by \ref mdbx_env_create().
* \param [out] period_seconds_16dot16 Address of an size_t to store
* the period in 1/65536 of second when
* a synchronous flush would be made since
* the last unsteady commit.
*
* \returns A non-zero error value on failure and 0 on success,
* some possible errors are:
* \retval MDBX_EINVAL An invalid parameter was specified. */
LIBMDBX_INLINE_API(int, mdbx_env_get_syncperiod,
(const MDBX_env *env, unsigned *period_seconds_16dot16)) {
int rc = MDBX_EINVAL;
if (period_seconds_16dot16) {
uint64_t proxy = 0;
rc = mdbx_env_get_option(env, MDBX_opt_sync_period, &proxy);
#ifdef assert
assert(proxy <= UINT32_MAX);
#endif /* assert */
*period_seconds_16dot16 = (unsigned)proxy;
}
return rc;
}
/** \brief Close the environment and release the memory map.
* \ingroup c_opening
*